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carburetor bowl gaskets, which fit best?
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Author:  fastmike [ Thu Oct 17, 2013 11:35 am ]
Post subject:  carburetor bowl gaskets, which fit best?

Which supplier sells gaskets that have the correct fit to place in the carburetor and seal the bowl properly? I've had a few that are too long (sudco) and end up folded on installation of the bowl. Is a slight swipe on the gasket, of RTV or the like, used to help a fuel tight seal? I've never seen any fuel come out of the overflow. When I use the side stand, slight leak at the bowls. Center stand, dry as a bone. Warped bowls possibly, but a nice fitting gasket is where I'd like to start my troubleshooting. I'm still trying to iron out my carburetor jetting and bowl removal/installation is an everyday event. Jess, Mid Atlantic, Z1, whoever. I know you guys have gone through this but I could not find any referrals for nice fitting gaskets.

Author:  two-stroke-brit [ Thu Oct 17, 2013 11:58 am ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

Ivan recommends lapping the bowls flat again and it cured my incontinent bowls.
to make it easier is to use a plate with a 1 1/4" hole in it with some 400 wet n dry paper stuck to it.
i got OEM gaskets from Ivan as well. :thumbup:

Author:  Peter 750 [ Thu Oct 17, 2013 12:29 pm ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

two-stroke-brit wrote:
Ivan recommends lapping the bowls flat again and it cured my incontinent bowls.
to make it easier is to use a plate with a 1 1/4" hole in it with some 400 wet n dry paper stuck to it.
i got OEM gaskets from Ivan as well. :thumbup:


I'm sorry, but can you explain more if you will?
I'm having the same leaking problems with my '73 H2A....!
I've used sealer to stop them from leaking, but if there's a better way...??

Author:  Jim [ Thu Oct 17, 2013 1:23 pm ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

He means putting a piece of fairly fine sandpaper on a flat surface and flattening the sealing surfaces. They can get warped, especially when the screws are tightened too much.

EZ-Turn fuel resistant grease is a great sealer for bowl gaskets, if used sparingly. Aircraft Spruce stocks it. It's the stuff to use inside the petcock too.

Author:  Peter 750 [ Thu Oct 17, 2013 2:00 pm ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

OK, thanks I will try that.
Do you have a link for that grease?

Author:  Jim [ Thu Oct 17, 2013 2:48 pm ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

http://www.aircraftspruce.com/catalog/cspages/ezturnlube.php?clickkey=5414

There may be a supplier closer to you, I don't know.

Author:  III [ Thu Oct 17, 2013 4:20 pm ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

http://www.aircraftsupply.com/ezturn5oz.html

Smaller size tube.

Author:  Jim [ Thu Oct 17, 2013 4:31 pm ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

Looks the same to me.

Author:  fastmike [ Fri Oct 18, 2013 12:58 am ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

Ah yes. I remember Jim's humor about the 1lb. can in another topic on petcocks. Didn't realize it can also be used as a sealer in the bowl gasket app. Sweet. I guess I'll take the petcock apart again and give that 4 hole a swipe when I get the product. I understand the theory of lapping the carb bowl sealing surface to remove any warping. I did that to the petcock surfaces after JB Weld, sanding and polishing for that leak issue. Back to the bowl gaskets, upon removal of the first old bowl gaskets (black in color) I noticed an even imprint in the gasket from the raised seal line on the carb side. In the photo I attached, you can see that the seal line fades on these dark grey sudco versions, making me realize I over tightened the bowls during many removals for carb cleanings and jetting changes. You can also see the fold, or crease, where the gasket was too long and got pinched over itself. So aside from grabbing the EZ Lube, I'm still looking for referrals to a good fitting gasket from anyone that purchased from Jess, Mid, or Z1, or a link to Ivan's site for the OEM's. Thanks for the replies. :thumbup:

Image

Author:  Peter 750 [ Fri Oct 18, 2013 10:24 am ]
Post subject:  Re: carburetor bowl gaskets, which fit best?

http://www.ebay.co.uk/itm/Castrol-Red-R ... 0086766651

Will this do?
Shipping cost for the EZ Lube from the USA is very high, so I did a google search for fuel resistant grease, and found the Castrol product in the link above..

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